Albini is a pretty limited producer: drums way up in the mix, vocals buried, bass either overboard or non-existent. Little bands use him as a producer because he is a "name" and big bands such as Bush, Robert Plant and the Manic St Preachers use him as a punk-rock novelty and then never use him again because he can only do one thing and because he's a dick.
And his music wasn't all that great either. Big Black did have influence, but it too was limited and really only had an effect on people like Reznor and Jourgeson who then took it to the masses. And Shellac kinda sucks too. Live at Action Park was cool at first but has no depth, and no one listens to any other Shellac album.
And he's a stupid jerk who never responded to the birthday card I spent a really really long time on.